Eternal Launches Personalized Nutrition Product for Active Individuals, Powered by 70+ Biomarkers

July 8, 2025

New “Foundations” membership, delivers lab-driven nutrition and supplement strategies for lifelong athletes.

San Francisco, CA (8 July 2025) /ENDURANCE SPORTSWIRE/ — Eternal, the science-backed performance health company for lifelong athletes, today announced the launch of Foundations, a $499/year membership that brings lab-driven, personalized nutrition guidance to active people everywhere.

Designed for athletes and high-performers who want more than just “in-range” results, Foundations bridges the gap between full concierge health services and the growing demand for deeper insight into unlocking long-term performance.

“Nutrition is confusing for everyone. For athletes, it’s a minefield,” remarked Alex Mather, Eternal’s founder and CEO. “We’re hit with conflicting advice every day—tons of tactics, but not the tools to make it all work. With Eternal, we cut through the noise, start with how you feel and perform, and trust the biomarkers that follow.”

Each Foundations diagnostic cycle includes blood testing for over 70 biomarkers, with panels focused on inflammation, hormone health, metabolic function, and cardiovascular performance. Eternal’s in-house medical team analyzes the data and delivers a personalized, results-driven action plan that turns raw lab results into clear health priorities grounded in performance science and actionable insight. Every member receives a tailored, integrated plan designed to help them fuel smarter, recover better, and reach their long-term fitness goals.

Central to this is nutritional support, led by Kelsey Bailey (RDN, CSSD), who specializes in fueling for physical performance not only for athletes, but also the military, law enforcement, and firefighters. Targeting both Eternal’s core base of endurance athletes and a younger segment now beginning to think long-term about their health, Foundations meets a growing demand for precision diagnostics and clarity around nutritional needs without the cost or complexity of full concierge medical programs.

Foundations is launching first in California, Connecticut, New York, Massachusetts, Oregon, Virginia, and Texas. Additional states, including Washington, Missouri, Wisconsin, South Carolina and Kentucky are expected to follow quickly with the goal of making the remainder of the US states eligible for the service by end of year.

This launch brings Eternal’s signature medical-grade insights to a broader population who may not yet live near one of Eternal’s flagship locations in New York and San Francisco, but want the data, expertise, and guidance to extend their athletic peak. Like Eternal’s full program, Foundations is rooted in the belief that access to information and early intervention are critical tools for long-term health and performance.

“We’re excited to bring the Foundations product to athletes everywhere,” added Mather. “Most blood-only products obsess over biomarkers and leave people wondering, ‘now what?’ We deliver simple, concrete next steps to help athletes live harder, longer. And, we’re opening the door for more people to experience Eternal’s care, no matter their age or where they are in their journey.”

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About Eternal
Founded by Alex Mather (co-founder of The Athletic and early Strava product leader) and backed by Lightspeed Venture Partners, Courtside Ventures, and others, Eternal is redefining proactive healthcare for high-performing adults. The company combines medical diagnostics, expert care teams, and performance-focused strategies to help athletes thrive over time.

To learn more and sign up for early access, visit https://eternal.co/memberships/foundations.

Media Contact:

Garin Fons
InGoodTaste

garin@igtstudio.com